This configuration does not incorporate the internal plenum chambers of the deposition head pictured in FIG. Miniature deposition head is approximately one-fifth the diameter of standard deposition head optomec direct-write aerosol jetting hose The deposition head assembly optionally further comprises a third chamber for receiving sheath gas from the first chamber, the third chamber assisting the first chamber in developing a cylindrically symmetric distribution of sheath gas pressure about the channel before the sheath gas is combined with the aerosol.
This basic understanding enables a description of process limitations grounded in fundamental principles, as well as guidelines for improved printer design, ink formulation, and print parameter optimization. The optomec direct-write aerosol jetting hose of multiple deposition heads for direct printing applications may be facilitated by using miniaturized deposition heads to increase the number of nozzles per unit area.
The deposition head assembly preferably comprises one or more actuators for translating or tilting the deposition head relative to the target.
The deposition head assembly preferably has a diameter of less than approximately 1 cm. In this configuration, the sheath gas enters the plenum chamber from ports located on the side of the chamber, and flows upward to the sheath gas channels However in this case, the distance between the upper and lower plenum chambers is reduced to enable further miniaturization of the deposition head.
For more information about Optomec, visit http: Overhangs and closed cells can be printed directly, without using sacrificial support materials. The miniature deposition head preferably comprises the same basic internal geometry as the standard head, in that an annular flow is formed between the aerosol and sheath gases in a configuration similar to that of the standard deposition head.
The mass throughput is preferably controlled by an aerosol carrier gas mass flow controller. As with the aerosol carrier gas, the sheath gas flowrate is preferably controlled by a mass flow controller. SUMMARY OF THE INVENTION The present invention is a deposition head assembly for depositing a material on a target, the deposition head assembly comprising a deposition head comprising a channel for transporting an aerosol comprising the material, one or more inlets for introducing a sheath gas into the deposition head; a first chamber connected to the inlets; a region proximate to an exit of the channel for combining the aerosol with the sheath gas, thereby forming an annular jet comprising an outer sheath flow surrounding an inner aerosol flow; and an extended nozzle.
Development of the sheath gas flow within the deposition head is critical to the deposition characteristics of the system, determines the final width of the jetted aerosol stream and the amount and the distribution of satellite droplets deposited beyond the boundaries of the primary deposit, and minimizes clogging of the exit orifice by forming a barrier between the wall of the orifice and the aerosol-laden carrier gas.
In contrast, our Aerosol Jet micro-dispense process can simultaneously deposit polymers, metal, and ceramic materials, and further functionalize these printed structures by adding additional material to them without having to remove the originally created structure.
The monolithic configuration can be mounted on a two-axis gantry with a stationary target, or the system can be mounted on a single axis gantry, with a target fed in a direction orthogonal to the motion of the gantry. The invention may also be used to print materials onto heat-sensitive targets, is performed under atmospheric conditions, and is capable of deposition of micron-size features.
Containment funnel is preferably centered within atomizer chamber and is connected to carrier gas portwhich preferably comprises a hollow tube that extends out of the top of the atomizer chamber As in the configuration of FIG. Miniaturization of the deposition head also facilitates a direct write process in which the deposition head is mounted on a moving gantry, and deposits material on a stationary target.
What is claimed is: The size of the orifice diameter of the nozzle is chosen in accordance with the range of desired linewidths of the deposited material.
The design allows for a reduction in the size of the deposition headand easier fabrication of the device. What benefits does this new additive manufacturing method offer over conventional 2D lithographic processing?
The carrier gas and the sheath gas most commonly comprise compressed air or an inert gas, where one or both may contain a modified solvent vapor content. The miniature deposition head functions similarly, if not identically, to the standard deposition head, but has a diameter that is approximately one-fifth the diameter of the larger unit.
The deposition head assembly of claim 1 having a diameter of less than approximately 1 cm. In this configuration, a cylindrically symmetric pressure distribution is obtained by passing the sheath gas through preferably equally spaced holes in disk centered on the axis of the head.Aug 16, · Optomec, a leading global supplier of production-grade additive manufacturing systems for 3D printed electronics and 3D printed metals recently announced its Aerosol Jet Technology can enable 3D polymer and composite structures to be printed at the micron scale with embedded electronics.
3D PRINTER news, 3D PRINTER views, 3D PRINTER reviews. New Mexico-based Optomec is well-known for both its aerosol jet technology, which is used to 33D print electronics, and its other patented AM process: LENS, which uses Directed Energy Deposition (DED) for high-value metal 3D printing.
The Aerosol Jet Print Engine from Mew Mexico machinery company Optomec, MIT’s direct-write colloid 3D printing unlocks new possibilities in electronics and energy. Optomec developed the Aerosol Jet 5X for use in the small-scale personal electronics market and they hope it will aid in the development of smaller and more advanced smart phones, tablets, laptops and sensors.
Aug 10, · Miniature aerosol jet and aerosol jet array Optomec Design Company (Albuquerque, NM, US) Primary Class: / Other Classes: Miniaturization of the deposition head also facilitates a direct write process in which the deposition head is mounted on a moving gantry, and deposits material on a stationary.
Aerosol Jet systems reliably produce ultra-fine feature circuitry for semiconductor packaging applications.Download